Evaluation of flexible sigmoidoscopy as an investigation for "left sided" colorectal symptoms.
D003108:Colonic Diseases / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008297:Male; D012002:Rectal Diseases / Q000175:diagnosis*; D012189:Retrospective Studies; D020694:Sigmoidoscopes; D012812:Sigmoidoscopy / Q000379:methods*